Gripping force measuring device

Abstract

The embodiment of the present disclosure discloses a clamping force measuring device, comprising a head mold assembly and an adjusting mechanism, the head mold assembly comprises a first head mold and a second head mold, the first head mold and the second head mold form a human head model profiling structure after buckling along a first direction, the first head mold has a first assembly part, and the second head mold has a second assembly part; the adjusting mechanism comprises a base, a driving piece, a first support piece and a second support piece, the first support piece and the second support piece are arranged at intervals along the first direction, the first head mold has a first assembly part, the second head mold has a second assembly part, the first support piece has a first connecting part, the second support piece has a second connecting part, the first connecting part is matched with the first assembly part and forms a detachable connection, and the second connecting part is matched with the second assembly part and forms a detachable connection.

Description

Technical Field

[0001] This utility model relates to the field of head-mounted device technology, and more specifically, to a clamping force measuring device. Background Technology

[0002] With the development of technology, head-mounted products such as virtual reality devices, mixed reality devices, smart helmets, and smart straps are becoming increasingly popular. To improve user comfort, it is necessary to measure and simulate the clamping force during the wearing process.

[0003] In existing technologies, head mold components are typically used to simulate the shape of a real human head. The head-mounted device to be measured is then worn on the head mold component, and a measuring device is used to measure the clamping force exerted by the head-mounted device on the head mold component.

[0004] However, since head-mounted products need to meet the wearing needs of different users, their sizes vary, resulting in different sizes of the corresponding head mold components. This requires the measuring device to also meet the measurement needs of head-mounted products of different sizes. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a new clamping force measuring device.

[0006] According to one aspect of the present invention, a clamping force measuring device is provided, comprising:

[0007] A head mold assembly, comprising a first head mold and a second head mold, wherein the first head mold and the second head mold are fastened together along a first direction to form a human head model contour structure, the first head mold having a first assembly part, and the second head mold having a second assembly part;

[0008] An adjustment mechanism is provided, comprising a base, a drive component, a first support component, and a second support component. The first support component and the second support component are arranged at intervals along the first direction. The first head mold has a first assembly portion, and the second head mold has a second assembly portion. The first support component has a first connecting portion, and the second support component has a second connecting portion. The first connecting portion is adapted to the first assembly portion and forms a detachable connection, and the second connecting portion is adapted to the second assembly portion and forms a detachable connection.

[0009] The driving member is disposed on the base, and the driving end of the driving member is connected to at least one of the first support member and the second support member, so that the driving member can drive the first support member and / or the second support member to move along the first direction, and cause the first support member and the second support member to gradually move closer or further away.

[0010] Optionally, at least one of the first assembly part and the second assembly part is provided with a first thread, and at least one of the first connecting part and the second connecting part is provided with a second thread, wherein the first thread and the corresponding second thread form a threaded connection;

[0011] Alternatively, at least one of the first assembly part and the second assembly part is a magnet, and at least one of the first connecting part and the second connecting part is a magnetic component, wherein the magnet and the corresponding magnetic component form a magnetic attraction connection.

[0012] Optionally, at least one of the first assembly portion and the second assembly portion is a protrusion, and at least one of the first connecting portion and the second connecting portion is a groove, wherein the groove engages with the corresponding protrusion.

[0013] Optionally, the first connecting part is a sliding member, which is located on the side of the first support member away from the second support member, and the first mounting part is a recessed part, wherein the sliding member and the recessed part are engaged.

[0014] Optionally, the recess has a slide rail, and the slider is slidably connected to the slide rail.

[0015] Optionally, the recess includes a first portion and a second portion along the assembly direction, the slide rail is located in the second portion, and the width of the second portion is greater than the width of the first portion.

[0016] Optionally, the second support member is fixed to the base. The second support member includes a support base and a second connecting part. The second connecting part is a connecting rod. One end of the connecting rod passes through the support base, and the other end of the connecting rod is detachably connected to the second assembly part.

[0017] Optionally, the second assembly part is a hollow sleeve, which forms a detachable fit with the connecting rod.

[0018] Optionally, the support base is provided with a plurality of connecting rods, and at least some of the connecting rods are arranged at an angle to the first direction.

[0019] Optionally, the adjustment mechanism further includes a pressure sensor, and the first support and / or the second support are connected to the pressure sensor.

[0020] Optionally, the adjustment mechanism further includes a first transmission member, the driving end of the driving member is connected to the first transmission member, and the first support member is connected to the first transmission member;

[0021] Driven by the driving member, the first transmission member can drive the first support member to move along the first direction and move closer to or further away from the second support member.

[0022] One technical advantage of the embodiments disclosed herein is that:

[0023] This invention utilizes a detachable connection design between the first support member and the first head mold, and between the second support member and the second head mold, making the clamping force measuring device highly versatile. Different specifications or types of head molds can be easily and quickly replaced according to different measurement needs. For example, when measuring the clamping force of a child's head-mounted device, a child's head model can be used; for head-mounted devices with special shapes or sizes, corresponding head molds can also be customized for measurement. This flexibility greatly expands the applicability of the clamping force measuring device, ensuring accurate clamping force data can be obtained in various measurement scenarios.

[0024] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, which form part of this specification, illustrate embodiments of the present invention and, together with the specification, serve to explain the principles of the present invention.

[0026] Figure 1 This is a schematic diagram of an adjustment mechanism for a head mold assembly according to an embodiment of the present disclosure;

[0027] Figure 2 This is another schematic diagram of an adjustment mechanism for a head mold assembly according to an embodiment of the present disclosure;

[0028] Figure 3 This is a schematic diagram of a clamping force measuring device according to an embodiment of the present disclosure;

[0029] Figure 4 This is a schematic diagram of a first support member according to an embodiment of the present disclosure;

[0030] Figure 5 This is a schematic diagram of a first head mold according to an embodiment of the present disclosure;

[0031] Figure 6 This is a partial schematic diagram of a first head mold connection point according to an embodiment of this disclosure;

[0032] Figure 7 This is a schematic diagram of a second head mold according to an embodiment of the present disclosure.

[0033] Explanation of reference numerals in the attached figures:

[0034] 100. First head mold; 1001. First assembly section; 10011. First part; 10012. Second part;

[0035] 200. Second head mold; 2001. Second assembly section;

[0036] 1. Base; 2. Drive component; 3. First transmission component; 4. First support component; 41. First connecting part; 42. Pressure sensor; 5. Detection component; 6. Second support component; 61. Support base; 62. Second connecting part; 7. Control component; 8. Reflector component; 9. Connector component. Detailed Implementation

[0037] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0038] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0039] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0040] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0041] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0042] This invention provides a clamping force measuring device, which can measure the clamping force of a head-mounted device after it is worn on a head mold assembly, thereby improving the user's comfort during the wearing process.

[0043] like Figures 1 to 3 As shown, the clamping force measuring device provided in this embodiment of the present invention includes:

[0044] A head mold assembly, comprising a first head mold 100 and a second head mold 200, wherein the first head mold 100 and the second head mold 200 are fastened together along a first direction to form a human head model contouring structure, the first head mold 100 having a first assembly part 1001, and the second head mold 200 having a second assembly part 2001;

[0045] The adjustment mechanism includes a base 1, a drive member 2, a first support member 4, and a second support member 6. The first support member 4 and the second support member 6 are arranged at intervals along the first direction. The first support member 4 has a first connecting portion 41, and the second support member 6 has a second connecting portion 62. The first connecting portion 41 is adapted to the first assembly portion 1001 and forms a detachable connection, and the second connecting portion 62 is adapted to the second assembly portion 2001 and forms a detachable connection.

[0046] The driving member 2 is disposed on the base 1, and the driving end of the driving member 2 is connected to at least one of the first support member 4 and the second support member 6, so that the driving member 2 can drive the first support member 4 and / or the second support member 6 to move along the first direction, and make the first support member 4 and the second support member 6 gradually move closer or further away.

[0047] like Figure 3 As shown, the head mold assembly includes a first head mold 100 and a second head mold 200. The first head mold 100 and the second head mold 200 can be made of materials with certain strength and hardness, such as plastic or metal alloy, to ensure that the head mold assembly can maintain a stable shape during measurement, thereby accurately simulating the shape and structure of the human head.

[0048] The first head mold 100 and the second head mold 200 are joined together to form a human head model contour structure. Specific joining methods include, but are not limited to, snap-fit ​​connections, magnetic connections, and bolt connections. For example, snap-fits and slots can be provided at corresponding positions on the edges of the first head mold 100 and the second head mold 200. After aligning the first head mold 100 and the second head mold 200, pressing them together allows the snap-fits to engage with the slots, achieving a tight fit. Alternatively, magnets can be embedded in the edges of the first head mold 100 and the second head mold 200 respectively, using magnetic attraction to join them together. Bolt holes can also be provided on the first head mold 100 and the second head mold 200 respectively, allowing them to be fixedly connected with bolts.

[0049] The snap-fit ​​head model should have a shape and contour similar to a real human head to ensure the accuracy and reliability of measurement results. This design can realistically simulate the shape, size, and contour of a real human head, so that when measuring the clamping force after wearing the head-mounted device, the force applied by the device and the resulting deformation are close to reality. For example, when measuring the clamping force of the head-mounted device on the head, a realistic head model can accurately reflect the force on the contact area between the device and the head, avoiding measurement errors caused by inaccurate models, and thus providing more reliable data support for the design and optimization of the head-mounted device.

[0050] Specifically, the base 1, serving as the mounting foundation for the entire adjustment mechanism, can be made of high-strength, high-rigidity metal materials, such as aluminum alloy or stainless steel. The base 1 is typically a rectangular flat plate structure with a precision-machined surface to ensure flatness, thus providing stable support and a mounting reference. Mounting holes can be provided at the four corners of the base 1 for fixing the entire adjustment mechanism to a work platform or other equipment.

[0051] like Figures 1 to 3 As shown, the first support member 4 and the second support member 6 are arranged at intervals along a first direction, which is also the arrangement direction of the first head mold 100 and the second head mold 200. Figures 1 to 3 The X direction is used to facilitate corresponding fit. The first support 4 and the second support 6 can be made of a rigid metal material. Rubber pads can be provided on the surfaces of the first support 4 and the second support 6 that contact the corresponding head mold. These rubber pads have a certain degree of elasticity and friction to better fit the head mold, preventing slippage during adjustment and also providing cushioning and protection.

[0052] In practical clamping force measurement scenarios, the head-mounted devices to be measured may have different sizes and shapes. For example, when measuring the clamping force of a child's head-mounted device versus an adult's head-mounted device, the size difference between children's and adults is significant. Through a detachable connection method that adapts the first connecting part 41 to the first assembly part 1001 and the second connecting part 62 to the second assembly part 2001, different specifications of the first head mold 100 and the second head mold 200 can be easily and quickly replaced. Simply remove the original head mold from the support and install the head mold that meets the measurement requirements; no large-scale modification or replacement of the entire measuring device is required, greatly improving the device's versatility and enabling it to adapt to clamping force measurement work for various different sized objects.

[0053] Furthermore, the detachable connection structure is designed with positioning and guiding functions, facilitating precise alignment between the first connecting part 41 and the first assembly part 1001, and between the second connecting part 62 and the second assembly part 2001 during installation. This precise alignment ensures that the head mold assembly maintains a stable position and posture during measurement, avoiding head mold wobbling or displacement caused by inaccurate connections, thereby reducing measurement errors and improving measurement accuracy.

[0054] During multiple measurements, the head mold assembly may need to be repeatedly disassembled and reassembled. The detachable connection design also provides excellent repeatability, ensuring that the relative position and connection status of the head mold and its corresponding support remain highly consistent after each installation. This consistency guarantees that the measurement conditions and the state of the measured object are essentially the same across multiple measurements, resulting in better repeatability and comparability of the measurement results, thereby improving the reliability of the measurement data.

[0055] The drive component 2 can be a servo motor or a cylinder, and can be fixed to the corresponding position on the base 1 with bolts. For example... Figure 2 As shown, slots can be cut at corresponding positions on the base 1, and the drive component 2 can be embedded in the corresponding slots. This facilitates the assembly of the drive component 2 and helps improve assembly accuracy. At the same time, the slots can also form a relatively independent area on the base, so that the drive component 2 embedded therein can operate more stably.

[0056] The driving end of the driving component 2 is connected to at least one of the first support component 4 and the second support component 6 via a transmission connection. This means that the driving component 2 can drive either the first support component 4 or the second support component 6 independently, or it can drive both simultaneously in coordinated motion. This flexible motion control method allows the clamping force measuring device to adapt to various complex measurement scenarios. For example, when it is necessary to measure the clamping force distribution of the head-mounted device under unilateral force, only the first support component 4 or the second support component 6 can be driven; while when it is necessary to measure the overall clamping force, both support components can be driven simultaneously to ensure uniform force distribution on the head mold assembly.

[0057] Optionally, the adjustment mechanism further includes a detection element 5, which is configured to detect the displacement value of the first support 4 and / or the second support 6, and the detection element 5 is communicatively connected to the drive element 2.

[0058] like Figure 1 As shown, the detection component 5 can be selected from displacement sensors such as laser type, photoelectric type, and Hall type. These displacement sensors can accurately measure the displacement value of the corresponding support component and convert the displacement signal into an electrical signal output to the controller.

[0059] Furthermore, the detection element 5 is connected to the drive element 2 via a signal line or wireless communication. During the adjustment process, the detection element 5 can detect the displacement value of the corresponding support in real time and convert the displacement signal into an electrical signal, which is then sent to the control circuit of the drive element 2. The control circuit of the drive element 2 compares the received displacement signal with the preset target displacement value. If there is a deviation, the operating state of the drive element 2 is adjusted until the displacement of the corresponding support reaches the target value, thereby achieving precise adjustment of the head mold assembly position.

[0060] Thus, through this closed-loop feedback control system, the drive component 2 can adjust its operating state in a timely manner based on the detected deviation between the actual displacement and the target displacement of the corresponding support component, such as changing its speed, direction, or stopping operation, thereby achieving precise control of the head mold assembly's position. Compared with traditional open-loop control adjustment mechanisms, the clamping force measuring device of this invention can greatly improve the adjustment accuracy, control the displacement error within a very small range, and ensure that the head mold assembly accurately reaches the preset position.

[0061] Furthermore, the communication connection between the detection component 5 and the driving component 2 enables intelligent control of the clamping force measuring device. Operators can preset the target position parameters of the head mold assembly through an external control system. The adjustment mechanism automatically adjusts the operation of the driving component 2 based on the displacement information fed back by the detection component 5, thus achieving automated adjustment of the head mold assembly's position. This intelligent control method greatly simplifies the operation process, reduces manual intervention, and improves operational efficiency and accuracy.

[0062] Optionally, at least one of the first assembly part 1001 and the second assembly part 2001 is provided with a first thread, and at least one of the first connecting part 41 and the second connecting part 62 is provided with a second thread, wherein the first thread and the corresponding second thread form a threaded connection.

[0063] Alternatively, at least one of the first assembly part 1001 and the second assembly part 2001 may be a magnet, and at least one of the first connecting part 41 and the second connecting part 62 may be a magnetic component, wherein the magnet and the corresponding magnetic component form a magnetic attraction connection.

[0064] Therefore, by using the threaded connection or magnetic connection that matches the first connecting part 41 with the first assembly part 1001 and the second connecting part 62 with the second assembly part 2001, it is also possible to conveniently and quickly replace the first head mold 100 and the second head mold 200 of different specifications without damaging the head mold.

[0065] Optionally, at least one of the first assembly portion 1001 and the second assembly portion 2001 is a protrusion, and at least one of the first connecting portion 41 and the second connecting portion 62 is a groove, wherein the groove engages with the corresponding protrusion.

[0066] like Figures 3 to 7 As shown, the first assembly part 1001 can be set as a first protrusion, and the first connecting part 41 can be set as a first groove that matches the first protrusion, with the first groove and the first protrusion forming a snap-fit; or the second assembly part 2001 can be set as a second protrusion, and the second connecting part 62 can be set as a second groove that matches the second protrusion, with the second groove and the second protrusion forming a snap-fit.

[0067] Optionally, the first connecting part 41 is a sliding member, which is located on the side of the first support member 4 away from the second support member 6, and the first mounting part 1001 is a recessed part, which is engaged with the sliding member.

[0068] like Figures 3 to 6 As shown, the first assembly part 1001 of the first head mold 100 can be set as a recessed part, and the sliding part can be adapted to the corresponding recessed part and can form a snap-fit, so that the first support 4 can form a snap-fit ​​with the first head mold 100. This can facilitate convenient and reliable assembly of the first support 4 and the first head mold 100, and also facilitate the disassembly and replacement of the first head mold 100. Thus, the clamping force measuring device can be used to measure the clamping force of different first head molds 100.

[0069] like Figures 3 to 6 As shown, the sliding member of the first support member 4 cooperates with the recessed portion, enabling precise control and fine-tuning of the position of the first head mold 100. During clamping force measurement, the accurate position of the head mold is crucial to the accuracy of the measurement results. The sliding member can use its own sliding mechanism, such as a guide rail or a groove, to allow the first head mold 100 to move precisely in a specific direction.

[0070] Traditional head mold installation and positioning methods often rely on manual operation, which is prone to introducing operational errors. The sliding component design, however, makes the positioning process of the first head mold 100 more mechanized and automated, reducing human interference. Operators can move the first head mold 100 to the accurate position simply by rotating the adjustment knob or pushing the sliding rod, avoiding positioning errors caused by differences in operator skill and experience, thereby improving the consistency and reliability of measurement results.

[0071] Furthermore, the design of the sliding component allows the clamping force measuring device to adapt to first head molds 100 of different sizes. By adjusting the position of the sliding component or replacing it with a sliding component of different specifications, the installation position and spacing of the first head mold 100 can be changed, thereby meeting the measurement requirements of first head molds 100 of different sizes. This adaptability makes the clamping force measuring device have a wider range of applications and can meet the clamping force measurement needs of different industries and products.

[0072] Optionally, the recess has a slide rail, and the slider is slidably connected to the slide rail.

[0073] like Figure 5 and Figure 6 As shown, the recess of the first head mold 100 can be provided with a slide rail, and the sliding member is adapted to the slide rail and can be slidably assembled along the slide rail, so as to facilitate the assembly and disassembly of the first support member 4 and the first head mold 100.

[0074] Optionally, the recess includes a first portion 10011 and a second portion 10012 along the assembly direction, the slide rail is located in the second portion 10012, and the width of the second portion 10012 is greater than the width of the first portion 10011.

[0075] like Figure 5 As shown, the first part 10011 and the second part 10012 can be arranged vertically along the Z direction, with the first part 10011 located above and the second part 10012 located below. During assembly, the slider can be pushed from bottom to top, allowing it to slide along the slide rail of the second part 10012 until it abuts against the first part 10011. This allows the smaller first part 10011 to limit the sliding of the slider, thereby reducing assembly difficulty.

[0076] Optionally, the second support member 6 is fixed to the base 1. The second support member 6 includes a support base 61 and a second connecting part 62. The second connecting part 62 is a connecting rod. One end of the connecting rod passes through the support base 61, and the other end of the connecting rod is detachably connected to the second assembly part 2001.

[0077] like Figure 1 As shown, the support base 61, serving as the base 1 of the entire second support member 6, provides a stable support platform for the connecting rod and the second head mold 200. It is typically made of materials with sufficient strength and rigidity, such as metal or high-strength engineering plastics, capable of withstanding various forces generated by the second head mold 200 during testing, avoiding localized stress concentration, and thus ensuring that the entire second support member 6 will not deform or be damaged due to excessive force. This provides a solid foundation for the accuracy and reliability of the clamping force test.

[0078] The second connecting part 62 is configured as a connecting rod, with one end of the connecting rod passing through the support base 61, forming a tight and reliable connection between the two. This connection can be achieved through various methods such as threaded connection and interference fit, ensuring that the connecting rod is firmly fixed on the support base 61 and will not loosen or wobble during testing. At the same time, the design of the connecting rod passing through the support base 61 also increases the contact area between the connecting rod and the support base 61, thereby improving the stability and reliability of the connection, and thus ensuring that the second head mold 200 maintains a stable position and posture throughout the testing process.

[0079] The other end of the connecting rod is detachably connected to the second assembly part 2001 of the second head mold 200, which also allows the second support member 6 to be adapted to second head molds 200 of different specifications and shapes. The connecting rod and the second assembly part 2001 of the second head mold 200 can be detachably connected by means of threaded connection, snap connection, pin connection, etc., which can achieve convenient disassembly of the two.

[0080] By replacing the connecting rods of different specifications or using different mating methods, the second support 6 can be connected to various types of second head molds 200, thereby meeting the needs of different test objects and improving the versatility and economy of the clamping force measuring device.

[0081] Optionally, the second assembly part 2001 is a hollow sleeve, and the hollow sleeve forms a detachable fit with the connecting rod.

[0082] like Figure 3 and Figure 7 As shown, the hollow sleeve is used to insert and fix the connecting rod of the second support member 6. When the connecting rod is inserted into the hollow sleeve, the two can form a tight integral structure. During the test, the second head mold 200 will be subjected to various forces. The hollow sleeve can evenly distribute these forces to the connecting rod, thereby avoiding local stress concentration and enhancing the overall structural strength of the second head mold 200, enabling it to withstand greater external forces and ensuring the smooth progress of the test.

[0083] Furthermore, this through-hole design can also limit the swaying and vibration of the second head mold 200. The tight fit of the connecting rod within the hollow sleeve can constrain the movement of the second head mold 200 in all directions, reduce the swaying amplitude of the second head mold 200, and thus improve the stability and reliability of the test.

[0084] Furthermore, during multiple tests, it is necessary to ensure that the second head mold 200 can be repeatedly positioned in the same location. The fit design of the hollow sleeve and the connecting rod also provides excellent repeatability. Because the fit between the two is fixed, the second head mold 200 can accurately return to its original position after each installation and disassembly, reducing the accumulation of positioning errors and facilitating multiple measurements.

[0085] Optionally, the support base 61 is provided with a plurality of connecting rods, and at least some of the connecting rods are arranged at an angle to the first direction.

[0086] like Figure 1 and Figure 2As shown, multiple connecting rods form detachable engagements with the second assembly part 2001 of the second head mold 200, enabling reliable fixing and convenient disassembly of the second head mold 200. At least some of the connecting rods are arranged at an angle to the first direction; that is, not all connecting rods are arranged along the first direction. This staggered design allows multiple connecting rods to engage and fix with the second assembly part 2001 of the second head mold 200, i.e., the corresponding hollow sleeve, from different directions, thereby improving the reliability of the connection of the second head mold 200.

[0087] Optionally, the adjustment mechanism further includes a pressure sensor 42, which is connected to the first support 4 and / or the second support 6.

[0088] like Figure 3 As shown, the pressure sensor 42 on the first support member 4 forms a pressure transmission path from the first head mold 100 to the first support member 4 and then to the pressure sensor 42. This allows the pressure sensor 42 to measure the supporting force of the first support member 4 in real time, which is also the pressure or clamping force of the first head mold 100. Furthermore, the pressure sensor 42 can cooperate with the detection member 5 to achieve closed-loop control of the supporting force. It can not only detect the overall clamping force of the first head mold 100 but also obtain the distribution of clamping force in different areas, thus simulating the comfort of wearing a human head.

[0089] Similarly, the pressure sensor on the second support member 6 forms a pressure transmission path from the second head mold 200 to the second support member 6 and then to the pressure sensor. This allows the pressure sensor to measure the supporting force of the second support member 6 in real time, i.e., the pressure or clamping force of the second head mold 200. Furthermore, this pressure sensor can cooperate with corresponding detection components to achieve closed-loop control of the supporting force. It can not only detect the overall clamping force of the second head mold 200 but also obtain the distribution of clamping force in different areas, thus simulating the comfort of wearing the head mold.

[0090] Optionally, the adjustment mechanism further includes a first transmission member 3, the driving end of the driving member 2 is connected to the first transmission member 3, and the first support member 4 is connected to the first transmission member 3;

[0091] Driven by the driving member 2, the first transmission member 3 can drive the first support member 4 to move along the first direction and move closer to or further away from the second support member 6.

[0092] like Figure 1As shown, the first transmission component 3 can be a slide bar connected to the drive end of the servo motor. Under the drive of the servo motor, the slide bar can generate precise linear motion and drive the first support component 4 on it to move along the first direction, that is, the arrangement direction of the first head mold 100 and the second head mold 200, to a preset position.

[0093] In one embodiment, the driving end of the driving component 2 can be connected to the first transmission component 3 via a coupling. The coupling is an elastic pin coupling, which has a certain ability to compensate for the relative displacement of the two shafts, so as to smoothly transmit the power of the driving component 2 to the first support component 4, reduce the impact and vibration during the transmission process, and avoid problems such as head mold position deviation or adjustment loss of control caused by unstable transmission.

[0094] Optionally, it also includes a control element 7, which is disposed on the base 1, and the detection element 5 and the driving element 2 are respectively communicatively connected to the control element 7.

[0095] Specifically, the detection component 5 can detect the displacement value of the corresponding support component in real time and feed this data back to the control component 7. The control component 7, also known as the controller, compares the feedback displacement value with the preset target displacement value in real time. If a deviation is detected, it adjusts the operating state of the drive component 2, such as changing the speed or direction, to eliminate the deviation and achieve closed-loop feedback precise control. This control method can promptly correct errors in the adjustment process, keeping the displacement error of the head mold assembly within a very small range, thereby meeting the high-precision requirements for head mold positioning in medical, scientific research, and other fields.

[0096] Optionally, it also includes a reflector 8, which is connected to the first transmission member 3 or the first support member 4, and the detection member 5 is a laser sensor, which is disposed on the base 1 and faces the reflector 8.

[0097] like Figure 1 and Figure 2 As shown, the reflector 8 can be a reflector plate. The reflector 8 is connected to the first transmission member 3 or the first support member 4, so that the reflector 8 can move together with the first support member 4. During the process of the reflector 8 moving together with the first support member 4, the laser sensor can emit laser light towards the reflector 8 and receive the laser light reflected back from the reflector 8, thereby obtaining the real-time displacement of the first support member 4, so as to adjust the driving state of the drive member 2.

[0098] Optionally, it also includes a connector 9, which is disposed on the first transmission member 3, and the first support member 4 and the reflector 8 are respectively connected to the connector 9.

[0099] like Figure 1As shown, the connector 9 can be a connecting plate, which is placed on the first transmission member 3, and then the first support member 4 and the reflector 8 are placed on it. This can facilitate the installation of the first support member 4 and the reflector 8, and also avoid friction and wear between the first support member 4 and the reflector 8 and the first transmission member 3, which helps to ensure the normal operation of the first support member 4 and the reflector 8.

[0100] Furthermore, the driving force transmission path formed by the driving component 2 - first transmission component 3 - connecting component 9 - first support component 4 and reflector 8 can also buffer the driving force output by the driving component 2, avoiding the risk caused by the driving force acting directly on the first support component 4 and reflector 8.

[0101] Optionally, the first support member 4 and the reflector 8 are respectively connected to two adjacent sides of the connector 9, and the extending direction of the first support member 4 is perpendicular to the first direction.

[0102] like Figure 1 As shown, the first support member 4 and the reflector 8 are respectively connected to the two adjacent sides of the connector 9 to make full use of the connection space of the connector 9 and to avoid interference between the first support member 4 and the reflector 8 during movement. The extension direction of the first support member 4 is the Z direction, and the driving direction of the drive member 2 is the first direction, that is, the horizontal direction, so as to use the first support member 4 to adjust the position of the mating first head mold 100.

[0103] In one embodiment, the device further includes a driver such as a motor or cylinder, which is connected to the second support member 6 via a corresponding transmission structure. This allows the driver to drive the second support member 6 to move along a first direction, moving it closer to or further away from the first support member 4. In other words, the first support member 4 and the second support member 6 can move independently under the drive of their respective drivers, enabling independent adjustment of the positions of the first head mold 100 and the second head mold 200.

[0104] Furthermore, a position sensor can be set to detect the displacement value of the second support member 6 in real time. The corresponding driver can adjust its own operating state in a timely manner according to the deviation between the detected actual displacement of the second support member 6 and the target displacement, such as changing the rotation speed, turning direction, or stopping operation, thereby achieving precise control of the position of the second head mold 200.

[0105] In one embodiment, the driver for the second support member 6 can be omitted, that is, the first support member 4 and the second support member 6 can be driven synchronously by the driver member 2 and the second transmission member. In this case, threads with opposite directions of rotation can be provided on the second transmission member, and the first support member 4 and the second support member 6 can be threaded to it respectively, so that the first support member 4 and the second support member 6 can move in opposite directions, thereby realizing the synchronous adjustment of the positions of the first head mold 100 and the second head mold 200.

[0106] Optionally, the laser sensor and the reflector 8 are coaxially arranged;

[0107] Alternatively, the angle between the axes of the laser sensor and the reflector 8 shall not exceed 45 degrees.

[0108] In one embodiment, the laser sensor and the reflector 8 can be arranged coaxially. That is, the laser sensor and the reflector 8 are completely coaxial, so that the laser emission path and the laser reception path are completely coincident, thereby eliminating the measurement dead angle caused by the laser sensor due to the optical path offset, and thus improving the detection accuracy and real-time response capability of the laser sensor.

[0109] In one embodiment, the axes of the laser sensor and the reflector 8 can be set to have an angle, that is, the laser sensor and the reflector 8 are not coaxial. On the one hand, this can adapt to the complex spatial layout inside the adjustment mechanism and facilitate the optimization of the internal layout of the adjustment mechanism; on the other hand, setting the angle between their axes to be less than or equal to 45 degrees can also improve the environmental adaptability of the laser sensor through a special coating process.

[0110] Optionally, the detection component 5 is a pull-wire rangefinder, which is mounted on the base 1, and the pull wire of the pull-wire rangefinder is connected to the first transmission component 3 or the first support component 4.

[0111] In one embodiment, the detection element 5 can be set as a pull-wire rangefinder. The pull-wire rangefinder is placed at the corresponding position of the base 1, and its pull rope is connected to the first support element 4 or the first transmission element 3. This allows the pull-wire rangefinder to detect the displacement of the first support element 4 in real time as the first support element 4 moves together with the first transmission element 3, thereby facilitating the adjustment of the driving state of the drive element 2.

[0112] In one embodiment, the detection element 5 can also be a linear displacement sensor. The linear displacement sensor is placed on the first transmission element 3 or the first support element 4 so that the linear displacement sensor can accurately measure the linear displacement of the first support element 4 and convert the displacement signal into an electrical signal output so as to adjust the driving state of the drive element 2.

[0113] The above embodiments mainly describe the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be elaborated here.

[0114] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A clamping force measuring device, characterized in that, include: A head mold assembly, comprising a first head mold (100) and a second head mold (200), wherein the first head mold (100) and the second head mold (200) are fastened together along a first direction to form a human head model contouring structure, wherein the first head mold (100) has a first assembly part (1001) and the second head mold (200) has a second assembly part (2001); The adjustment mechanism includes a base (1), a drive member (2), a first support member (4), and a second support member (6). The first support member (4) and the second support member (6) are arranged at intervals along the first direction. The first support member (4) has a first connecting portion (41), and the second support member (6) has a second connecting portion (62). The first connecting portion (41) is adapted to the first assembly portion (1001) and forms a detachable connection. The second connecting portion (62) is adapted to the second assembly portion (2001) and forms a detachable connection. The driving member (2) is disposed on the base (1), and the driving end of the driving member (2) is connected to at least one of the first support member (4) and the second support member (6) in a transmission connection, so that the driving member (2) can drive the first support member (4) and / or the second support member (6) to move along the first direction, and make the first support member (4) and the second support member (6) gradually move closer or further away.

2. The clamping force measuring device according to claim 1, characterized in that, At least one of the first assembly part (1001) and the second assembly part (2001) is provided with a first thread, and at least one of the first connecting part (41) and the second connecting part (62) is provided with a second thread, and the first thread and the corresponding second thread form a threaded connection; Alternatively, at least one of the first assembly part (1001) and the second assembly part (2001) is a magnet, and at least one of the first connecting part (41) and the second connecting part (62) is a magnetic element, wherein the magnet and the corresponding magnetic element form a magnetic attraction connection.

3. The clamping force measuring device according to claim 1, characterized in that, At least one of the first assembly part (1001) and the second assembly part (2001) is a protrusion, and at least one of the first connecting part (41) and the second connecting part (62) is a groove, wherein the groove engages with the corresponding protrusion.

4. The clamping force measuring device according to claim 3, characterized in that, The first connecting part (41) is a sliding member, which is located on the side of the first support member (4) away from the second support member (6). The first assembly part (1001) is a recessed part, and the sliding member and the recessed part are engaged.

5. The clamping force measuring device according to claim 4, characterized in that, The recessed portion has a slide rail, and the sliding member is slidably connected to the slide rail.

6. The clamping force measuring device according to claim 5, characterized in that, The recess includes a first portion (10011) and a second portion (10012) along the assembly direction, the slide rail is located in the second portion (10012), and the width of the second portion (10012) is greater than the width of the first portion (10011).

7. The clamping force measuring device according to claim 1, characterized in that, The second support member (6) is fixed to the base (1). The second support member (6) includes a support base (61) and a second connecting part (62). The second connecting part (62) is a connecting rod. One end of the connecting rod passes through the support base (61), and the other end of the connecting rod is detachably connected to the second assembly part (2001).

8. The clamping force measuring device according to claim 7, characterized in that, The second assembly part (2001) is a hollow sleeve, which is detachably fitted with the connecting rod.

9. The clamping force measuring device according to claim 7, characterized in that, The support base (61) is provided with a plurality of connecting rods, and at least some of the connecting rods are arranged at an angle to the first direction.

10. The clamping force measuring device according to claim 1, characterized in that, The adjustment mechanism further includes a first transmission component (3), the driving end of the driving component (2) is connected to the first transmission component (3) in a transmission connection, and the first support component (4) is connected to the first transmission component (3); Driven by the drive member (2), the first transmission member (3) can drive the first support member (4) to move along the first direction and move closer to or further away from the second support member (6).

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